Coffee urn



i Sept. 2, 1924.

`1,507,414 E. NEY t COFFEE URN FiL-ed April 4, 1924 Patented .(epte 2,

UNITED STATES EDEVAR'D'NEY, OF NEW YORK, N. Y.

corran URN.

Application` filed April 4c,

To all whomz' may concer-m.'

Be it known that l, EDWARD Nici', a cit-izen oit the United States, and a resident of New York, county and State oi' New York, have invented certain new and useful lmprovcn'ients in Collee- Urns, oi which the following is a specification.

This invention relates particularly to coilee urns of the combination type in which water is heated in a compartment surrounding the jar or coffee container and in which the body oihot water is used to provide the heat for the coffee. In the. operation of these urns a soi-called water stone or lime stone gradually builds up on the walls ot' the water chamber forming a heat insulating lining which materially reduces the thermal etficiency of the urn. As heretofore construct-ed, it is impossible to remove this lining or incrustation without unsoldering joints and taking the urn completely apart. As result, rather than take them apart, these urns have been continued in operation when their thermal eiiiciency was greatly lowered and when for sanitary reasons they should have been thoroughly cleansed.

Special objects oft this invention are to provide a simple, practical and inex )ensive combination urn construction having provision for readily opening the same and making it possible 'to quickly cleanse. all interior parts without unsoldering joints or break ing what would be considered permanent connections.

ln the accompanying` drawing there is illustrated a practical embodiment ot the invention, wherein:

Figure 1 is a broken vertical sectional view of the. urn.

Figure 2 is an enlarged broken sectional view ot the joint between the inner water jacket and the outer casing.

Figure 3 is a. broken horizontal section of the same on substantially the plane of line lli-3 ot' Figure 2.

ln the embodiment ot the invention herein disclosed, the shell or case oi the urn is. designated 5, and the jar is indicated at. 6 supported within the hollow off the jacket 7 which by cooperation with the surrounding wall ot the case provides an annular water chamber 8.

The jar is shown as having an annular upward extension 9 connected at its lower end with the rim of the jar by a tight fitting 1924. Serial No. 704,089.

joint 10 and having curled overy rim' 11 at its upper end slidably and adjustably litting down over the edge ot they case.

'lf he bottom ot the is held in place and connected with an outlet by a flanged coupling 12, screwing down into an outlet litting 13 connected with the discharge pipe 14 leading to the faucet or other discharge device at the outside ot the urn. This construction makes it possible to litt out the annular extension and with it, the ar, upon simply removing the screw coupling 12.

The annular ory bowl shaped wall 7 which terms the water acket is made readily removable Yfrom the casing by securing it at the bottom between the outlet fitting 13 and a washer or gasket 15 at the bott-om of the and by securing it at the top by a clamp ring 16 overstanding an outwardly turned flange 17 at theV rim of such jacket and forcing the same against a gasket 18 on the internal annularI shoulder 19 ot the outer casing. This clamping ring is shown as held in place by a, series ot bolts 2O which are exposed upon the removal of the jar.

The water jacket forming wall is thus firmly supported in position by a tight joint with the casing but when desired, can be quickly removed from the casing attersimply taking out the screw coupling, lifting out the ar and then taking of the clamping ring.

The removal of this jacket member it will be seen, exposes the entire interior of the casing so that all parts or' the same can be reached for cleaning and for chipping ofi' the water stone or lime stone where the same :is found to be hardened to an extent requiring chipping operations. The complete removal o the jacket enables that part to be readily cleaned both inside and out.

The heating of the water is shown as eftected in the present disclosure by a steam ring 21 in the bottom of the water compartment. This ring also is made readily removable in the present disclosure by supporting it on hollow pedestals 22, 23, having flanges resting on the bottom 24 of the casing and neck portions 25 extending down through the bottom and having nuts 26 turned up on the same into clamping engage ment with suitable gaskets or Washers 27. The steam inlet and outlet pipes 28, 29 are shown as threaded into the extensions or necks yof the pedestals.

It will be clear from this that upon disllO connection of the steam pipes and removal Lfixture 13 can be entirely removed and taken 4of the clamp nuts 26, the heating coil may out of the way when the steam ring is to be f removed. The invention thus makes it posl5 sible to remove any or all the inner parts of the urn for cleaning, inspection or iepair pi'lrposes and this without shifting the casing or disturbing its setting.

lVhat is claimed is: l. A. coii'ibination-collee urn of the char'- acter disclosed comprising a casing having a continuous fixed shoulder on the inner wall of the same, a gasket seated on said shoulder, an annular shell within the casing having a flanged rim engaged with said gasket, a continuous clamping ring bearing lon said flanged rim, a plurality of screw bolts securing said clamping ring to the annular shoulder with the gasket and the flanged rim'of the shell interposed therebetween and thereby providing a closed but readily opened annular water chamber between the casing and shelha jar within the shell having an upper annular extension covering the detachable fastening means for the water jacket shell and having ak readily detachable engagement with the upper end of the casing, whereby upon removal of said jar access will be provided vto thev fastening means for the water jacket shell, which fastening means can then be released to permit removal of the Water jacket shell and conse- `quent exposure of the entire interior of the .curing said clamping ring to the annular shoulder with the gasket and the flanged rim of the shell interposed therebetiiecn and thereby providing a closed but readily opened annular water chamber between the vcasing and shell, a jar within the shell having an upper annular extension covering the detachable fastening means for the Water jacket shell and having a readily detachable engagement with the upper end of the casing, whereby upon removal of said jar access will be provided to the fastening means` forv the Water jacket shell, which fastening means can vthen be released to permit reinovy al of the water jacket shell and consequent exposure of the entire interior of the casing, outlet connections extending from the jar through the shell, readily detachable to enable first the removal of the jar and then the removal of the shelland a. heating coil detacliably secured on the bottom of the casing beneath the shell where it will be eX-V posed by the removal of the shell and completely removable from the casing after such.

removal of the shell.

sol

In witness whereof, I have hereunto setl f my hand this 29th day of March, 1924.,

EDVARD NEY. 

